AttachmentDownloader implementation.

sync/internal_api/attachments/fake_attachment_downloader_unittest.cc

+// Copyright 2014 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "sync/internal_api/public/attachments/fake_attachment_downloader.h"
+
+#include "base/bind.h"
+#include "base/message_loop/message_loop.h"
+#include "base/run_loop.h"
+#include "sync/api/attachments/attachment.h"
+#include "testing/gtest/include/gtest/gtest.h"
+
+namespace syncer {
+
+class FakeAttachmentDownloaderTest : public testing::Test {
+ protected:
+  FakeAttachmentDownloaderTest() {}
+
+  virtual void SetUp() OVERRIDE {}
+
+  virtual void TearDown() OVERRIDE {}
+
+  AttachmentDownloader* downloader() {
+    return &attachment_downloader_;
+  }
+
+  AttachmentDownloader::DownloadCallback download_callback() {
+    return base::Bind(&FakeAttachmentDownloaderTest::DownloadDone,
+                      base::Unretained(this));
+  }
+
+  const std::vector<AttachmentDownloader::DownloadResult>& download_results() {
+    return download_results_;
+  }
+
+  void RunMessageLoop() {
+    base::RunLoop run_loop;
+    run_loop.RunUntilIdle();
+  }
+
+ private:
+  void DownloadDone(const AttachmentDownloader::DownloadResult& result,
+                    scoped_ptr<Attachment> attachment) {
+    download_results_.push_back(result);
+  }
+
+  base::MessageLoop message_loop_;
+  FakeAttachmentDownloader attachment_downloader_;
+  std::vector<AttachmentDownloader::DownloadResult> download_results_;
+};
+
+TEST_F(FakeAttachmentDownloaderTest, DownloadAttachment) {
+  AttachmentId attachment_id = AttachmentId::Create();
+  downloader()->DownloadAttachment(attachment_id, download_callback());
+  RunMessageLoop();
+  EXPECT_EQ(1U, download_results().size());
+  EXPECT_EQ(AttachmentDownloader::DOWNLOAD_SUCCESS, download_results()[0]);
+}
+
+}  // namespace syncer